CN106300491B - power supply system and display device - Google Patents
power supply system and display device Download PDFInfo
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- CN106300491B CN106300491B CN201510356962.5A CN201510356962A CN106300491B CN 106300491 B CN106300491 B CN 106300491B CN 201510356962 A CN201510356962 A CN 201510356962A CN 106300491 B CN106300491 B CN 106300491B
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- 239000003990 capacitor Substances 0.000 claims abstract description 145
- 230000008878 coupling Effects 0.000 claims abstract description 26
- 238000010168 coupling process Methods 0.000 claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 claims abstract description 26
- 230000003321 amplification Effects 0.000 claims description 24
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 24
- 230000005611 electricity Effects 0.000 claims description 14
- 230000002776 aggregation Effects 0.000 claims description 8
- 238000004220 aggregation Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 21
- 230000008859 change Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
Abstract
The invention discloses a power supply system and a display device, wherein the power supply system comprises a charge pump module, the charge pump module comprises a plurality of charge pump circuits, an amplifier module and a load module, each charge pump circuit comprises a plurality of transistor switches and a control module, and is coupled in parallel with a fly capacitor bank, and the fly capacitor bank comprises a plurality of fly capacitor units; the control module is used for generating a plurality of control signals to switch the coupling relation of the plurality of flying capacitor units; the plurality of charge pump circuits perform a charging operation on the plurality of flying capacitor units, and generate a charging voltage according to the coupling relation of the plurality of flying capacitor units; the amplifier module generates an amplified voltage by using the charging voltage as a voltage source; the load module is used for carrying out dynamic charging operation within a preset time according to the amplified voltage so as to enable the load module to reach a preset voltage.
Description
Technical field
The present invention relates to a kind of power systems and display equipment more particularly to one kind can accordingly carry out dynamic battery charger
The power system of work corresponds to driving display equipment to shorten a charging time.
Background technique
With making rapid progress for electronic mobile apparatus, stresses lightening or carbon reduction product and constantly develop, such as
The former many passive components (such as capacitor, diode) of placement on flexible circuit board in Thin Film Transistor-LCD, but with
Pursue product thin design, in order to effectively reduce the volume and size of flexible circuit board, these passive components are changed to set
It is placed in inside the driving chip of Thin Film Transistor-LCD, and a load blocks corresponding to driving chip can be by Figure 1A
Resistance capacitance model represented by.When load blocks are gate type, capacitance works as load blocks close to 260 pico farads (pF)
When for source electrode type, capacitance is 30~60 pico farads, and two types its capacitances is all corresponding with a load charging time, such as schemes
Shown in 1B.
Fig. 2A and Fig. 2 B are please referred to, Fig. 2A is the schematic diagram of one liang of multiplication of voltage charge pump power system 2 of the prior art,
And Fig. 2 B is the schematic diagram of a charge pump module 20 in Fig. 2A.As shown in Fig. 2A and Fig. 2 B, two multiplication of voltage charge pump power supplys are supplied
Answering system 2 includes a charge pump module 20, an amplifier module 22 and load blocks 24 (such as the one of a display panel
Equivalent load circuit), and charge pump module 20 includes transistor switch M1~M8, go at express speed capacitor cell C1, C2 and a storage
Deposit capacitor Cs.Preferably, charge pump module 20 can by Continuity signal KA, KB, XA (inversion signal of KA), (KB's is anti-by XB
Phase signals) turning on transistor switch M1~M8 is corresponded to, to be filled by a voltage VDD to go at express speed capacitor cell C1, C2
Electricity, and then export a charging voltage VS.Further, a voltage source such as charging voltage VS can be amplified and be exported by amplifier module 22
Amplify voltage for one, and is transmitted to load blocks 24 to supply its equivalent resistance-condenser network to carry out charging work.
However, going at express speed capacitor cell C1, C2 or storage capacitors Cs is constant capacitance due in the prior art, herein
In the case of, if user's charging time to be shortened and correspond to improve a frequency signal clk when, when the equivalent electricity in load blocks 24
The frequency signal clk that resistance-condenser network when completing charging work, has been improved closer to the load charging time will make charge pump
Module 20 persistently exports excessive charging current to carry out charging work to resistance-capacitance circuit, and does not meet and save power supply
Purpose；If user frequency signal clk to be reduced, as the fixed electricity corresponding to capacitor cell C1, C2 or storage capacitors Cs that goes at express speed
Capacitance will allow charging voltage VS to generate more noise, and the output-voltage levels for influencing charging voltage VS generate disturbance.
It is more in charge pump module to allow therefore it provides another circuit design improves existing charge pump module
A capacitor cell that goes at express speed correspondingly can be turned on and close, and then when exporting adjustable charging voltage and shortening its load charging
Between, it has also become the important topic of this field.
Summary of the invention
Therefore, the main object of the present invention is to be to provide a kind of charge pump module of design of improved circuit, to allow
Multiple capacitor cells that go at express speed correspondingly can be turned on and close in charge pump module.
The invention discloses a kind of power systems, include a charge pump module, an amplifier module and one
Load blocks, wherein the charge pump module include one first charge pump circuit, one second charge pump circuit and
One control module, the first charge pump circuit in parallel coupling one first are gone at express speed capacitance group, wherein described first goes at express speed capacitor
Group includes multiple the first of coupled in parallel to go at express speed capacitor cell, and the first charge pump circuit also includes one first crystalline substance
Body pipe switching group；Second charge pump circuit in parallel coupling one second is gone at express speed capacitance group, wherein described second goes at express speed capacitor
Group includes multiple the second of coupled in parallel to go at express speed capacitor cell, and the second charge pump circuit also includes one second crystalline substance
Body pipe switching group；The capacitance group of going at express speed of control module coupling described first is gone at express speed capacitance group with described second, more for generating
A control signal, with switch the multiple first go at express speed capacitor cell with the multiple second go at express speed capacitor cell coupling close
System；Wherein, the first charge pump circuit and the second charge pump circuit are according to multiple Continuity signals come to described
Multiple first capacitor cells that go at express speed with the multiple second capacitor cell that goes at express speed carry out a charging work, further according to the multiple the
The one coupling relationship that capacitor cell goes at express speed capacitor cell with the multiple second of going at express speed generates a charging voltage；The amplifier
Charge pump module described in module couples is a voltage source using the charging voltage, to generate an amplification voltage；The load
Amplifier module described in module couples is used to carry out a dynamic charging work in a default time according to the amplification voltage,
The power system is set to generate a default voltage.
The present invention separately discloses a kind of display equipment, includes a display panel and a power system, in which: described aobvious
Show that panel includes an equivalent load resistance and an equivalent load capacitance；The power system couples the display panel
The equivalent load resistance and the equivalent load capacitance, the power system includes a charge pump module and one
Amplifier module, the charge pump module include one first charge pump circuit, one second charge pump circuit and one
Control module, the first charge pump circuit in parallel coupling one first are gone at express speed capacitance group, wherein described first goes at express speed capacitance group
It include multiple the first of coupled in parallel to go at express speed capacitor cell, and the first charge pump circuit also includes a first crystal
Pipe switching group；Second charge pump circuit in parallel coupling one second is gone at express speed capacitance group, wherein described second goes at express speed capacitance group
It include multiple the second of coupled in parallel to go at express speed capacitor cell, and the second charge pump circuit also includes one second crystal
Pipe switching group；The capacitance group of going at express speed of control module coupling described first is gone at express speed capacitance group with described second, multiple for generating
Signal is controlled, is gone at express speed the coupling relationship that capacitor cell goes at express speed capacitor cell with the multiple second with switching the multiple first；
Wherein, the first charge pump circuit and the second charge pump circuit are according to multiple Continuity signals come to the multiple
First go at express speed capacitor cell with the multiple second go at express speed capacitor cell carry out a charging work, further according to the multiple first fly
The coupling relationship that capacitor cell goes at express speed capacitor cell with the multiple second of speeding generates a charging voltage；The amplifier module
The charge pump module is coupled, is a voltage source using the charging voltage, to generate an amplification voltage；Wherein, the electricity
Source supplying system is used to carry out a dynamic charging work in a default time according to the amplification voltage, make the display surface
Plate reaches a default voltage and shows work to correspond to starting one.
Detailed description of the invention
Figure 1A is the schematic diagram of a load blocks corresponding to a driving chip in the prior art.
Figure 1B is the schematic diagram in a load charging time corresponding to load blocks in Figure 1A.
Fig. 2A is the schematic diagram of one liang of multiplication of voltage charge pump power system of the prior art.
Fig. 2 B is the schematic diagram of a charge pump module in Fig. 2A.
Fig. 3 A is the schematic diagram that the embodiment of the present invention one shows equipment.
Fig. 3 B is the schematic diagram of one power system of the embodiment of the present invention.
Fig. 4 is the schematic diagram that a charging time corresponding to charge pump module completes voltage with one in Fig. 3 B.
Fig. 5 is the schematic diagram of another power system of the embodiment of the present invention.
Fig. 6 is the schematic diagram that a charging time corresponding to charge pump module completes voltage with one in Fig. 5.
Fig. 7 is the schematic diagram of another charge pump module of the embodiment of the present invention.
Fig. 8 is the schematic diagram of another charge pump module of the embodiment of the present invention.
Wherein, the reference numerals are as follows:
1 display equipment
2 liang of multiplication of voltage charge pump power systems
20,30,50,70,80 charge pump module
22 amplifier modules
24 load blocks
3,5,7,8 power system
300 first charge pump circuits
302 second charge pump circuits
304 first go at express speed capacitance group
306 second go at express speed capacitance group
308,508 control module
32 display panels
702,704,706,708,802,804,806, charge pump circuit
808
Cs storage capacitors
C1, C2,702_C, 704_C, 706_C, go at express speed capacitor cell
708_C、802_C、804_C、806_C、808_C
C1_1~C1_n first goes at express speed capacitor cell
C2_1~C2_n second goes at express speed capacitor cell
M1~M8, M1_1~M1_4, M2_1~transistor switch
M2_4, M1_1~M1_4, M2_1~M2_4,
702_M1~702_M4,704_M1~
704_M4,706_M1~706_M4,708_M1
~708_M4,802_M1~802_M4,
804_M1~804_M4,806_M1~
806_M4,808_M1~808_M4
VDD voltage source
Vref reference voltage
VS charging voltage
Vout amplifies voltage
V0, V1 complete voltage
RL load resistance
CL load capacitance
KA, KB, XA, XB Continuity signal
SW1_2U~SW1_nU, SW1_2D~switch block
SW1_nD, SW2_2U~SW2_nU,
SW2_2D~SW2_nD, 702_SWU,
704_SWU、706_SWU、708_SWU、
702_SWD、704_SWD、706_SWD、
708_SWD、802_SWU、804_SWU、
806_SWU、808_SWU、802_SWD、
804_SWD、806_SWD、808_SWD
T0, T1 charging time
T1, t2, t3, t4, s1, s2, s3, s4 charge period
Specific embodiment
Some vocabulary has been used in specification and subsequent claim to censure specific component.Affiliated neck
Technical staff person in domain is, it is to be appreciated that manufacturer may call same component with different nouns.This specification and after
Continuous claim is not in such a way that the difference of title is as difference component, but the difference with component functionally
As the benchmark of difference.It is an open use in the "comprising" of specification in the whole text and subsequent claim mentioned in
Language, therefore should be construed to " including but not limited to ".In addition, " coupling " word includes any direct and indirectly electrical connection herein
Means.Therefore, if it is described herein that a first device is coupled to a second device, then representing the first device may be directly connected to
The second device, or the second device is coupled indirectly to by other devices or connection means.
Fig. 3 A and Fig. 3 B are please referred to, Fig. 3 A is the schematic diagram that the embodiment of the present invention one shows equipment 1, and Fig. 3 B is the present invention
The schematic diagram of the power system 3 of embodiment one.As shown in Fig. 3 A and Fig. 3 B, the display equipment 1 in the present embodiment includes
One power system 3 and a display panel 32, and power system 30 is similar to two multiplication of voltage charge pump power supplys in Fig. 2 B
Supply system 2 also includes a charge pump module 30, amplifier module 22 and (i.e. the one of display panel 32 of load blocks 24
Equivalent load circuit).Preferably, the charge pump module 30 in the present embodiment includes one first charge pump circuit 300, one
Second charge pump circuit 302 and a control module 308.First charge pump circuit, 300 coupled in parallel one first is gone at express speed capacitor
Group 304, and include transistor switch M1_1~M1_4 of coupled in series to form a first transistor switching group, wherein crystal
The drain electrode of pipe switch M1_1, M1_2 are respectively coupled to a leakage of the source electrode of transistor switch M1_2, M1_3, transistor switch M1_3
Pole is coupled to a drain electrode of transistor switch M1_4, and the source electrode coupling of the drain electrode of transistor switch M1_1 and transistor switch M1_2
It is connected to the first end point for going at express speed capacitance group 304, and the drain electrode coupling of the drain electrode of transistor switch M1_3 and transistor switch M1_4
It is connected to the first another endpoint for going at express speed capacitance group 304.It goes at express speed electricity as the second charge pump circuit 302 also coupled in parallel 1 second
Appearance group 306, and include transistor switch M2_1~M2_4 of coupled in series to form a second transistor switching group, wherein brilliant
Body pipe switch M2_1, M2_2 drain electrode are coupled to a drain electrode coupling of the source electrode of transistor switch M2_2, M2_3, transistor switch M2_3
It is connected to a drain electrode of transistor switch M2_4, and the drain electrode of transistor switch M2_1 and the source electrode of transistor switch M2_2 are coupled to
Second end point for going at express speed capacitance group 306, and the drain electrode of transistor switch M2_3 and the drain electrode of transistor switch M2_4 are coupled to
The second another endpoint for going at express speed capacitance group 306；Meanwhile the drain electrode of transistor switch M1_2, the source electrode of transistor switch M1_3, crystalline substance
The drain electrode of body pipe switch M2_2 and the source electrode of transistor switch M2_3 couple a voltage source VDD.
In addition, 302 coupled in parallel storage capacitors Cs of the first charge pump circuit 300 and the second charge pump circuit, i.e., brilliant
A source electrode of body pipe switch M1_1 and a source electrode of transistor switch M2_1 are mutually coupled to one end of storage capacitors Cs, and crystal
A source electrode, a source electrode of transistor switch M2_4 and the other end of storage capacitors Cs of pipe switch M1_4 is coupled to a ground terminal.The
One goes at express speed capacitance group 304 and the second capacitance group 306 of going at express speed couples control module 308, and the first capacitance group 304 of going at express speed includes first
Go at express speed capacitor cell C1_1~C1_n, and the second capacitance group 306 of going at express speed also includes second to go at express speed capacitor cell C2_1~C2_n.
Furthermore the source electrode of the source electrode of transistor switch M1_1 and transistor switch M2_1 are further coupled to a power supply of amplifier module 22
End, and an input terminal of amplifier module 22 also receives reference voltage Vref, and an output end of amplifier module 22 is also coupled to
To an input terminal of load blocks 24 (i.e. the equivalent load circuit of display panel 32) and another input terminal of amplifier module 22.
As for the load resistance RL and a load capacitance CL in the equivalent load circuit of load blocks 24 including coupled in series, and it is negative
The one end for carrying capacitor CL is coupled to ground terminal, and a resistance value and load capacitance CL of the included load resistance RL of load blocks 24
One capacitance can determine the time that a predetermined voltage is reached in a dynamic charging work.
Notably, more persons also distinguish coupling in go at express speed in the present embodiment capacitor cell C1_1~C1_n, C2_1~C2_n
It is connected to multiple switch component, such as the capacitor cell C1_2 upper and lower ends point that goes at express speed has been respectively coupled to switch block SW1_2U, SW1_
2D ..., the capacitor cell C1_n upper and lower ends point that goes at express speed has been respectively coupled to switch block SW1_nU, SW1_nD, and the capacitor list that goes at express speed
First C2_2 upper and lower ends point be respectively coupled to switch block SW2_2U, SW2_2D ..., go at express speed capacitor cell C2_n upper and lower ends point
It has been respectively coupled to switch block SW2_nU, SW2_nD.Accordingly, the control module 308 in the present embodiment can produce multiple control letters
Number, with open or close first go at express speed capacitor cell C1_1~C1_n switch block SW1_2U~SW1_nU, SW1_2D~
SW1_nD and second goes at express speed switch block SW2_2U~SW2_nU, the SW2_2D~SW2_nD of capacitor cell C2_1~C2_n.
In the case, the control module 308 in the present embodiment can be gone at express speed using multiple control signal to open or close
Capacitor cell C1_1~C1_n, C2_1~C2_n, meanwhile, charge pump circuit 300,302 receives conducting letter as shown in Figure 2 B
Number KA, KB, XA, XB, with the conduction mode of correspondingly switching transistor switch M1_1~M1_4, M2_1~M2_4.Further, originally
Voltage source VDD in embodiment can carry out a charging work to go at express speed capacitor cell C1_1~C1_n, C2_1~C2_n, then pass through
Multiple control signal and Continuity signal XA, XB generate one by go at express speed capacitor cell C1_1~C1_n, the C2_1~C2_n that have turned on
Charging voltage VS, to export charging voltage VS to amplifier module 22.Then, amplifier module 22 is voltage using charging voltage
Source and according to reference voltage Vref, to generate amplification voltage Vout and be transmitted to load blocks 24, and load blocks 24 can basis
Amplify voltage Vout, in the given time carry out dynamic charging work, i.e., using amplification voltage Vout to load blocks 24 etc.
It imitates resistance-capacitance circuit and carries out dynamic charging work, to allow load blocks 24 that can reach a predetermined voltage within a predetermined time,
To drive the display work of display panel in display equipment 3.
In other words, the dynamic charging work of charge pump module 30 can in the given time, by control mould in the present embodiment
Block 308 controls the first switch block SW1_2U~SW1_ for going at express speed capacitor cell C1_1~C1_n using multiple control signal
NU, SW1_2D~SW1_nD and second goes at express speed switch block SW2_2U~SW2_nU, the SW2_2D of capacitor cell C2_1~C2_n
Coupling relationship corresponding to~SW2_nD is gone at express speed capacitor cell C1_1~C1_n and with opening or closing the first of different number
Two go at express speed capacitor cell C2_1~C2_n, and then allow go at express speed the capacitor cell C1_1~C1_n, C2_1~C2_n of charging complete
Charging voltage VS is generated, so that charge pump module 30 can correspond to the charge voltage source for generating and being dynamically adapted numerical value, and corresponding
Shorten the corresponding charging time.
Referring to FIG. 4, Fig. 4 is that a charging time T0 corresponding to charge pump module 30 and one completes voltage V0 in Fig. 3 B
Schematic diagram, and charging time T0 can also be divided into four charge periods t1, t2, t3, t4.In the present embodiment, in charge period
In t1, start from scratch due to predetermined voltage and charge, charge pump module 30 will open whole capacitor cell C1_1 that goes at express speed
~C1_n, C2_1~C2_n, to provide maximum charging ability.In charge period t2, since predetermined voltage has improved part
Voltage value, charge pump module 30 will open 80% quantity go at express speed capacitor cell C1_1~C1_n, C2_1~C2_n, with dimension
Hold it is a certain number of go at express speed capacitor cell to continue to charge, while it is energy saving to close the unnecessary capacitor cell that goes at express speed
Consumption.In charge period t3, voltage V0 is completed since the numerical value of predetermined voltage has been approached, charge pump module 30 will open
40% quantity goes at express speed capacitor cell C1_1~C1_n, C2_1~C2_n to reduce the quantity of the capacitor cell that goes at express speed used.?
In charging time t4, voltage V0 is completed since predetermined voltage has reached, charge pump module 30 will open going at express speed for 10% quantity
Capacitor cell C1_1~C1_n, C2_1~C2_n, and it is unnecessary correspondingly to reduce to close the most capacitor cell that goes at express speed
Power consumption.Certainly, capacitor quantity of going at express speed used in the present embodiment is only exemplary illustrated, and those skilled in the art can basis
Actual demand and different application, it is non-to limit the present invention to correspond to the quantity of the capacitor that goes at express speed opened or closed needed for adjustment
Range.
Accordingly, in the present embodiment charge pump module 30 and control module 308 work, be predetermined time T0 together
Begin time point (such as charge period t1) open more (or all) go at express speed capacitor cell and correspond to one first aggregation quantity,
And it is opened in a deadline point (such as charge period t3) of predetermined time T0 and less goes at express speed capacitor cell and to correspond to one
Second aggregation quantity so that start time point have turned on first go at express speed capacitor cell C1_1~C1_n and/or have turned on second fly
The the first aggregation quantity of capacitor cell C2_1~C2_n of speeding is greater than deadline point and has turned on first and goes at express speed capacitor cell C1_1
~C1_n and/or have turned on second go at express speed capacitor cell C2_1~C2_n second aggregation quantity, with adjustment use the electricity that goes at express speed
Hold the quantity of unit, and reaches corresponding energy saving effect simultaneously.In other words, if start time point corresponds to a first voltage
Value, and the corresponding second voltage value of deadline point, in dynamic charging carries out, the first voltage value will be less than second voltage value,
And one first tangent slope corresponding to the first voltage value is greater than one second tangent slope, i.e. this reality corresponding to second voltage value
Apply whether example can be gradually reduced accordingly based upon tangent slope corresponding to current voltage value, and opened needed for dynamically reducing
It goes at express speed the quantity of capacitor cell.
Referring to FIG. 5, Fig. 5 is the schematic diagram of the power system 5 of the embodiment of the present invention two.Compared to the electricity in Fig. 3 B
Source supplying system 3, power system 5 shown in fig. 5 also include the similar comprising modules for being similar to power system 3 and work
Make means, be different in, the control module 508 that power system 5 is included simulates control module, and control module for one
508 input terminal is further coupled to amplifier module 22 to receive reference voltage Vref and amplification voltage Vout.Further, mould is controlled
Block 508 can be according to a difference of amplification voltage Vout and reference voltage Vref, and output multiple control signal is winged to open or close
Speed capacitor cell C1_1~C1_n, C2_1~C2_n.In other words, the control mould that power system 5 is included in the present embodiment
Block 508 can corresponding comparison reference voltage Vref and amplification voltage Vout numerical values recited, with dynamic monitor at present caused by put
Whether big voltage Vout has completed the dynamic charging work in the present embodiment enough, and then correspondingly exports multiple control signal
The quantity of required go at express speed capacitor cell C1_1~C1_n, C2_1~C2_n are accurately opened or closed, and avoids opening excessively
Capacitor cell go at express speed to reduce the consumption of unnecessary power.
Referring to FIG. 6, Fig. 6 is that a charging time T1 corresponding to charge pump module 50 and one completes voltage V1 in Fig. 5
Schematic diagram, and charging time T1 can also be divided into four charge periods s1, s2, s3, s4.As shown in fig. 6, in the present embodiment,
In charge period s1, the difference of reference voltage Vref measured by control module 508 and amplification voltage Vout are maximum, make to control mould
Block 508 can control charge pump module 50 to open whole go at express speed capacitor cell C1_1~C1_n, C2_1~C2_n, to generate
Maximum charging ability.In charge period s2, the difference of reference voltage Vref measured by control module 50 and amplification voltage Vout
Value has been gradually reduced, and so that control module 508 is can control charge pump module 50 to open the capacitor cell C1_ that goes at express speed of 80% quantity
1~C1_n, C2_1~C2_n, and maintain to open and a certain number of go at express speed capacitor cell to continue to charge.In charge period s3,
Fairly close (i.e. default voltage has connect the difference of the reference voltage Vref as measured by control module 50 and amplification voltage Vout
It is close to complete voltage V1), the capacitor cell C1_1 that goes at express speed for making control module 508 that charge pump module 50 can control to open 40% quantity
~C1_n, C2_1~C2_n reduces the quantity of the used capacitor cell that goes at express speed.In charging time s4, by 50 institute of control module
Reference voltage Vref and the difference for amplifying voltage Vout are measured near zero (i.e. dynamic charging work is completed), makes control module
508 controllable charge pump modules 50 open go at express speed the capacitor cell C1_1~C1_n, C2_1~C2_n of 10% quantity, with dimension
Hold usage quantity it is less go at express speed capacitor cell and to close and most go at express speed capacitor cell to reduce unnecessary power consumption.
Certainly, going at express speed used in the present embodiment, capacitor quantity is only exemplary illustrated, and those skilled in the art can be according to actual needs
It is not used in and limits the scope of the invention to correspond to the quantity of the capacitor that goes at express speed opened or closed needed for adjustment with different application.
Referring to FIG. 7, Fig. 7 is the schematic diagram of the power system 7 of the embodiment of the present invention three.Compared to the electricity in Fig. 3 B
Source supplying system 3, the charge pump module 70 of power system 7 shown in Fig. 7 is in addition to including the first charge pump circuit
300, the second charge pump circuit 302, storage capacitors Cs and control module 308, also include at least have charge pump circuit 702,
704,706,708 etc., precisely because quantity is only exemplary illustrated, it is not used in and limits the scope of the invention.Further, charge pump electricity
Transistor switch 702_ all has been separately included similar to charge pump circuit 300,302 in road 702,704,706,708 each
M1~702_M4,704_M1~704_M4,706_M1~706_M4,708_M1~708_M4, and receive Continuity signal XA, XB
Switch those multiple transistor switch 702_M1~702_M4,704_M1~704_M4,706_M1~706_M4,708_M1~
The conduction mode of 708_M4.In addition, a upper extreme point also coupled in series switching group in charge pump circuit 702,704,706,708
Part 702_SWU, 704_SWU, 706_SWU, 708_SWU, and charge pump circuit 300,302 coupled in parallel, and charge pump
A lower extreme point also coupled in series switch block 702_SWD, 704_SWD, 706_SWD, 708_ in circuit 702,704,706,708
SWD is coupled to ground terminal.Compared to the capacitor cell that goes at express speed that charge pump circuit 300,302 also each includes coupled in parallel
C1, C2, each of the charge pump circuit 702,704,706,708 in the present embodiment also go at express speed capacitor cell by coupled in parallel
702_C、704_C、706_C、708_C。
Accordingly, the control module 308 in the present embodiment is also corresponding exports multiple control signal to open or close switching group
Part 702_SWU, 704_SWU, 706_SWU, 708_SWU, 702_SWD, 704_SWD, 706_SWD, 708_SWD, to be accordingly connected
Charge pump circuit 702,704,706,708, and then control electricity corresponding to the charging voltage VS to be exported of charge pump module 70
Fluxion value.As for the schematic diagram in charging time corresponding to charge pump module 70 and completion voltage, can refer to as shown in Figure 4
Long-term change trend, with the variation in different time according to charging voltage, corresponding unlatching/closing is gone at express speed capacitor cell C1, C2,702_
C, the quantity of 704_C, 706_C, 708_C provide different charging ability sizes, correspondingly to shorten charging time and effectively
The saving work for reaching the energy, as relevant operational detail this will not be repeated here it.
Referring to FIG. 8, Fig. 8 is the schematic diagram of the power system 8 of the embodiment of the present invention four.Compared to the electricity in Fig. 5
Source supplying system 5, the charge pump module 80 of power system 8 shown in Fig. 8 is in addition to including the first charge pump circuit
300, the second charge pump circuit 302, storage capacitors Cs and control module 508, also include at least have charge pump circuit 802,
804,806,808 etc., quantity is only exemplary illustrated, non-to limit the scope of the invention.Further, charge pump circuit
802, transistor switch 802_M1 all has been separately included similar to charge pump circuit 300,302 in 804,806,808 each
~802_M4,804_M1~804_M4,806_M1~806_M4,808_M1~808_M4, and Continuity signal XA, XB are received to cut
Change these multiple transistor switch 802_M1~802_M4,804_M1~804_M4,806_M1~806_M4,808_M1~808_
The conduction mode of M4.In addition, a upper extreme point also coupled in series switch block in charge pump circuit 802,804,806,808
802_SWU, 804_SWU, 806_SWU, 808_SWU, and charge pump circuit 300,302 coupled in parallel, and charge pump is electric
A lower extreme point also coupled in series switch block 802_SWD, 804_SWD, 806_SWD, 808_ in road 802,804,806,808
SWD is coupled to ground terminal.Compared to the capacitor cell that goes at express speed that charge pump circuit 300,302 also each includes coupled in parallel
C1, C2, each of the charge pump circuit 802,804,806,808 in the present embodiment also go at express speed capacitor cell by coupled in parallel
802_C、804_C、806_C、808_C。
Accordingly, the control module 508 in the present embodiment is also coupled to amplifier module (not shown) to receive with reference to electricity
Vref and amplification voltage Vout are pressed, and multiple controls are exported with the difference of amplification voltage Vout come corresponding according to reference voltage Vref
Signal, to open or close switch block 802_SWU, 804_SWU, 806_SWU, 808_SWU, 802_SWD, 804_SWD, 806_
SWD, 808_SWD, and then accordingly couple charge pump circuit 802,804,806,808 and be intended to export to control charge pump module 80
Current values corresponding to charging voltage VS.As for the signal in charging time corresponding to charge pump module 80 and completion voltage
Figure, can refer to Long-term change trend as shown in FIG. 6, in different time according to reference voltage Vref and amplification voltage Vout difference
Value variation, the go at express speed quantity of capacitor cell C1, C2,802_C, 804_C, 806_C, 808_C of corresponding unlatching/closing provide difference
Charging ability size, it is thin as relevant work with the saving work correspondingly shortened the charging time with effectively reach the energy
Section this will not be repeated here it.
The capacitor cell that goes at express speed of middle charge pump power system is all constant capacitance compared to the prior art, will be led
Its charging time is caused to be only capable of being adjusted by the lifting of frequency signal clk with charging voltage, provided in the present embodiment
Charge pump module can be accordingly with control module and multiple groups charge pump circuit, and each charge pump circuit is all corresponding with
At least one go at express speed capacitor cell and switch block, accordingly, control module will be intended to open according to the setting in charging time to control
The quantity of capacitor of going at express speed is opened or closed, or compares amplification voltage and the difference of reference voltage is gone at express speed to control to be intended to open or close
The quantity of capacitor, in other words, the present embodiment can correspondingly control the electricity that goes at express speed opened or closed needed for different charging time points
Hold the quantity of unit, is unlikely to excessive or too to control charging current corresponding to charge pump module charging voltage to be exported
It is small, and charge pump module can be allowed to provide the charging voltage of default number in the shortest time to drive display equipment, and realize
The consumption of effectively save power.Certainly, those skilled in the art can also modify, replace or combine those charging sides in the present embodiment
Working mechanism used in the module of Pu and circuit design, multiple capacitor cells that go at express speed can correspondingly be opened and closed, with right
Charging current and charging time person should be adjusted, the scope of the present invention is belonged to.
To sum up, charge pump module provided by the present embodiment includes control module and multiple groups charge pump circuit, and
Each charge pump circuit is all corresponding at least one go at express speed capacitor cell and switch block, and accordingly, control module can be according to filling
The setting of electric time or the difference for comparing charging voltage and reference voltage, to determine the number for the capacitor that goes at express speed to be opened or closed
Amount, be adjusted the size of the exported charging current of charge pump module can correspondingly, while charge pump module being maintained to make
Charged with most appropriate charging current, with improve the application range of the corresponding display equipment of charge pump module with
Product extendibility.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of power system, which is characterized in that include:
One charge pump module includes:
One first charge pump circuit, coupled in parallel 1 first are gone at express speed capacitance group, wherein the described first capacitance group of going at express speed includes
Multiple the first of coupled in parallel go at express speed capacitor cell, and the first charge pump circuit also includes the first transistor switch
Group；
One second charge pump circuit, coupled in parallel 1 second are gone at express speed capacitance group, wherein the described second capacitance group of going at express speed includes
Multiple the second of coupled in parallel go at express speed capacitor cell, and the second charge pump circuit also includes second transistor switch
Group；And
One control module, the capacitance group of going at express speed of coupling described first are gone at express speed capacitance group with described second, are believed for generating multiple controls
Number, it is gone at express speed the coupling relationship that capacitor cell goes at express speed capacitor cell with the multiple second with switching the multiple first；
Wherein, the first charge pump circuit and the second charge pump circuit are according to multiple Continuity signals come to described
Multiple first capacitor cells that go at express speed with the multiple second capacitor cell that goes at express speed carry out a charging work, further according to the multiple the
The one coupling relationship that capacitor cell goes at express speed capacitor cell with the multiple second of going at express speed generates a charging voltage；
One amplifier module couples the charge pump module, is a voltage source using the charging voltage, to generate an amplification
Voltage；And
One load blocks couple the amplifier module, are used to according to the amplification voltage, and it is dynamic that one is carried out within a predetermined time
State charging work makes the load blocks reach a predetermined voltage；
Wherein, the multiple first capacitor cell that goes at express speed with the multiple second at least one of the capacitor cell that goes at express speed is also coupled to one
Switch block, and the dynamic charging work was believed by the control module using the multiple control within the predetermined time
It number goes at express speed described at least one the opening of capacitor cell coupling to control the multiple first capacitor cell that goes at express speed with the multiple second
Component is closed, is gone at express speed capacitor list with opening or closing the multiple the first of the different number capacitor cell that goes at express speed with the multiple second
Member, and then generate the different charging voltages and correspond to different size of charging current.
2. power system as described in claim 1, which is characterized in that the first transistor switching group includes one
One transistor switch, second transistor switch, third transistor switch and one the 4th transistor switch, and described first is brilliant
One drain electrode of body pipe switch and a source electrode of second transistor switch are mutually coupled to described first and go at express speed the one of capacitance group
Endpoint, a drain electrode of the third transistor switch and a drain electrode of the 4th transistor switch are mutually coupled to described first
Another endpoint for capacitance group of going at express speed couples the described first go at express speed capacitance group and the first charge pump circuit in parallel, and institute
The source electrode for stating the first transistor switch couples the second charge pump circuit and a storage capacitors unit.
3. power system as described in claim 1, which is characterized in that the second transistor switching group includes one
Five transistor switches, one the 6th transistor switch, one the 7th transistor switch and one the 8th transistor switch, and the described 5th is brilliant
A drain electrode and a source electrode of the 6th transistor switch for body pipe switch is mutually coupled to described second and goes at express speed the one of capacitance group
Endpoint, a drain electrode of the 7th transistor switch and a drain electrode of the 8th transistor switch are mutually coupled to described second
Another endpoint for capacitance group of going at express speed couples the described second go at express speed capacitance group and the second charge pump circuit in parallel, and institute
The source electrode for stating the 5th transistor switch couples the first charge pump circuit and a storage capacitors unit.
4. power system as described in claim 1, which is characterized in that the predetermined time a start time point
The quantity that the multiple first goes at express speed capacitor cell is opened to add up with the quantity that the multiple second goes at express speed capacitor cell is had turned on
Corresponding one first aggregation quantity, and the deadline point in the predetermined time has turned on the multiple first and goes at express speed capacitor list
The quantity of member adds up quantity, and described the with the multiple second quantity aggregation of capacitor cell corresponding one second of going at express speed is had turned on
One aggregation quantity is greater than the second aggregation quantity.
5. power system as claimed in claim 4, which is characterized in that the corresponding first voltage of the start time point
Value, the corresponding second voltage value of the deadline point, the first voltage value are less than the second voltage value, and described first
One first tangent slope corresponding to voltage value is greater than one second tangent slope corresponding to the second voltage value.
6. power system as described in claim 1, which is characterized in that the load blocks include equivalent load electricity
Resistance and an equivalent load capacitance, and a capacitance of a resistance value of the equivalent load resistance and the equivalent load capacitance
Determine the time of the arrival predetermined voltage.
7. power system as described in claim 1, which is characterized in that the control module is also coupled to the amplifier mould
Block receives a reference voltage and the amplification voltage, and according to a difference of the reference voltage and the amplification voltage, right
The multiple control signal should be exported to open or close the multiple first capacitor cell that goes at express speed and go at express speed with the multiple second
Capacitor cell.
8. power system as described in claim 1, which is characterized in that the charge pump module is also coupled at least 1
Three charge pump circuits, the third charge pump circuit include multiple transistor switches, the third charge pump circuit
One third of coupled in parallel is gone at express speed capacitor cell and one switch block of coupled in series, and the control module utilizes the multiple control
One opens or closes the switch block in signal, and making the third capacitor cell that goes at express speed is according to the multiple Continuity signal
It is corresponding to generate another charging voltage to the load blocks with the conduction mode of the switch block.
9. power system as described in claim 1, which is characterized in that the charge pump module is also coupled at least 1
Four charge pump circuits, the 4th charge pump circuit includes multiple transistor switches, the 4th charge pump circuit
Coupled in parallel 1 the 4th is gone at express speed capacitor cell and one switch block of coupled in series, and the control module is also coupled to the amplifier
Module receives a reference voltage and the amplification voltage, and according to a difference of the reference voltage and the amplification voltage come
For the corresponding one that exports in the multiple control signal to the switch block, making the described 4th capacitor cell that goes at express speed is according to
The conduction mode of multiple Continuity signals and the switch block, it is corresponding to generate another charging voltage to the load blocks.
10. a kind of display equipment, which is characterized in that include:
One display panel includes an equivalent load resistance and an equivalent load capacitance；And
One power system, couple the display panel the equivalent load resistance and the equivalent load capacitance, include
Have:
One charge pump module includes:
One first charge pump circuit, coupled in parallel 1 first are gone at express speed capacitance group, wherein the described first capacitance group of going at express speed includes
Multiple the first of coupled in parallel go at express speed capacitor cell, and the first charge pump circuit also includes the first transistor switch
Group；
One second charge pump circuit, coupled in parallel 1 second are gone at express speed capacitance group, wherein the described second capacitance group of going at express speed includes
Multiple the second of coupled in parallel go at express speed capacitor cell, and the second charge pump circuit also includes second transistor switch
Group；And
One control module, the capacitance group of going at express speed of coupling described first are gone at express speed capacitance group with described second, are believed for generating multiple controls
Number, it is gone at express speed the coupling relationship that capacitor cell goes at express speed capacitor cell with the multiple second with switching the multiple first；
Wherein, the first charge pump circuit and the second charge pump circuit are according to multiple Continuity signals come to described
Multiple first capacitor cells that go at express speed with the multiple second capacitor cell that goes at express speed carry out a charging work, further according to the multiple the
The one coupling relationship that capacitor cell goes at express speed capacitor cell with the multiple second of going at express speed generates a charging voltage；
One amplifier module couples the charge pump module, is a voltage source using the charging voltage, to generate an amplification
Voltage；And
Wherein, the power system is used to carry out a dynamic battery charger within a predetermined time according to the amplification voltage
Make, so that the display panel is reached a predetermined voltage to correspond to one display work of starting；
Wherein, the multiple first capacitor cell that goes at express speed with the multiple second at least one of the capacitor cell that goes at express speed is also coupled to one
Switch block, and the dynamic charging work was believed by the control module using the multiple control within the predetermined time
It number goes at express speed described at least one the opening of capacitor cell coupling to control the multiple first capacitor cell that goes at express speed with the multiple second
Component is closed, is gone at express speed capacitor list with opening or closing the multiple the first of the different number capacitor cell that goes at express speed with the multiple second
Member, and then generate the different charging voltages and correspond to different size of charging current.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW104117898A TWI553605B (en) | 2015-06-03 | 2015-06-03 | Power Supply System and Display Apparatus |
| TW104117898 | 2015-06-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106300491A CN106300491A (en) | 2017-01-04 |
| CN106300491B true CN106300491B (en) | 2019-03-26 |
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| CN201510356962.5A Active CN106300491B (en) | 2015-06-03 | 2015-06-25 | power supply system and display device |
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| Country | Link |
|---|---|
| US (1) | US9716429B2 (en) |
| CN (1) | CN106300491B (en) |
| TW (1) | TWI553605B (en) |
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|---|---|---|---|---|
| CN108429445B (en) * | 2017-02-13 | 2020-04-14 | 珠海全志科技股份有限公司 | Soft start circuit applied to charge pump |
| CN107132418B (en) * | 2017-06-16 | 2024-04-09 | 珠海伊托科技有限公司 | Resistance detection system of overcurrent protection element |
| US20190020273A1 (en) * | 2017-07-17 | 2019-01-17 | Nanya Technology Corporation | Voltage system and method for operating the same |
| US10211724B1 (en) * | 2017-12-20 | 2019-02-19 | Micron Technology, Inc. | Electronic device with an output voltage booster mechanism |
| US10348192B1 (en) | 2017-12-20 | 2019-07-09 | Micron Technology, Inc. | Electronic device with a charge recycling mechanism |
| KR102634472B1 (en) * | 2018-04-25 | 2024-02-06 | 주식회사 엘엑스세미콘 | Step-up converter |
| CN110647969A (en) * | 2019-09-19 | 2020-01-03 | 重庆京东方智慧电子系统有限公司 | Electronic tag and control method thereof |
| TWI766314B (en) * | 2020-07-21 | 2022-06-01 | 茂達電子股份有限公司 | Power converter with automatic balance mechanism of flying capacitor |
| JP7334752B2 (en) * | 2021-02-26 | 2023-08-29 | 株式会社村田製作所 | voltage converter |
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|---|---|---|---|---|
| CN101202022A (en) * | 2006-12-13 | 2008-06-18 | 松下电器产业株式会社 | Drive voltage control device |
| CN103474018A (en) * | 2013-08-19 | 2013-12-25 | 矽创电子股份有限公司 | Power supply circuit of display device |
| CN203721167U (en) * | 2013-01-04 | 2014-07-16 | 矽创电子股份有限公司 | Drive circuit of display panel, driving module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8258857B2 (en) * | 2010-08-25 | 2012-09-04 | Summit Microelectronics, Inc. | Charge pump circuits and methods |
| US8339184B2 (en) * | 2010-10-29 | 2012-12-25 | Canaan Microelectronics Corporation Limited | Gate voltage boosting element for charge pump |
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2015
- 2015-06-03 TW TW104117898A patent/TWI553605B/en active
- 2015-06-25 CN CN201510356962.5A patent/CN106300491B/en active Active
- 2015-08-05 US US14/819,399 patent/US9716429B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202022A (en) * | 2006-12-13 | 2008-06-18 | 松下电器产业株式会社 | Drive voltage control device |
| CN203721167U (en) * | 2013-01-04 | 2014-07-16 | 矽创电子股份有限公司 | Drive circuit of display panel, driving module and display device |
| CN103474018A (en) * | 2013-08-19 | 2013-12-25 | 矽创电子股份有限公司 | Power supply circuit of display device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201643847A (en) | 2016-12-16 |
| CN106300491A (en) | 2017-01-04 |
| US20160358577A1 (en) | 2016-12-08 |
| TWI553605B (en) | 2016-10-11 |
| US9716429B2 (en) | 2017-07-25 |
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